Dated: Oct 15, 2023
Publication Name: Aquaculture
Citations : Comparative study of candidate sex determination regions in snakeheads (Channa argus and C. maculata) and development of novel sex markers
Belonging to the Channidae family, Channa argus and C. maculata are the main cultured snakehead species in China and have important economic value. Both species show distinct sexual dimorphism in growth, with males growing much faster than females. Therefore, the production of all males will majorly improve the efficiency of aquaculture. However, the sex-determination (SD) mechanism of snakeheads remains unclear. Herein, we used whole-genome resequencing data of C. maculata and C. argus to analyse sex-linked genomic regions in these two species. By using GWAS and Pool-seq analysis methods, their potential SD regions were refined to fewer than 200 kb, containing two protein-coding genes (rnf144a and id2) without known sex-related function.
Contributors: Donglei Sun and Haishen Wen and Xin Qi and Chao Li and Chaonan Sun and Lingyu Wang and Mingxin Zhu and Tianyu Jiang and Xiaoyan Zhang and Yun Li